REAL cell phone remote relay \ remote firework starter

Step 6 Next step for this project

A quick note, a reoccurring comment is that this can be used for IEDs. The fact that this is a DIY project for someone who wants a fun project. If you really want a detonator that is simple and takes about 5 min to make just look at the few year old shooting eggs video that I refer to.

It 1- has no voltage leakage,
2- can be used with any voltage,
3- takes NO expertise or skills and finally
4- it only needs a battery  2 wires and the phone, nothing else (well maybe a bit of tape).

I am tired of being apologetic about this project, it is what it is... if you really want to blow stuff up, this is not the simplest way, this is useful for someone who wants a reusable DIY project. If you want a single use, there are waaaaaaaaaaaaay easier ways and if you want a easy reusable non-diy relay, you can buy relays online for about 50 to 200$ (depending on what precision you want), ready made that have much better voltage control), this is a 5-10$ alternative to those expensive relays.

Comments

[gin_road]

Could I also wire this to a old cordless phone. Hooking it up to speaker of phone and using Page button on phone base/rechargeer unit to ring phone?

[julienrl]

as long as the circuit is open until the phone is paged at the point where your leads are going; best way to know is with a multimeter (using continuity mode or resistance if that is not available and if resistance is not available, low DC voltage measurement, but that is not ideal due to the low voltage you are measuring)